Type: Answers, Errata

Area: EMIF, Intellectual Property



Low Speed DDR2 Fails Calibration on Cyclone V Devices

Description

This problem affects DDR2 products.

DDR2 interfaces targeting Cyclone V devices at speeds less than 267 MHz may fail calibration in the guaranteed read stage.

Workaround/Fix

The workaround for this issue is to continue using an earlier version, or contact Altera Technical Support for assistance by creating a Service Request at http://www.altera.com/mysupport.

This issue will be fixed in a future version.